Multifunctional sound box and working method thereof, electronic equipment and storage medium

Abstract

The invention discloses a multifunctional sound box and a working method thereof, electronic equipment and a storage medium, and relates to the technical field of sound boxes. The sound box comprises a Bluetooth module, an audio input module, a microphone module, a mixing module, an analog power amplifier module, a digital power amplifier module, a power amplifier switching module, a loudspeaker, a switching power supply module and a battery management module, the Bluetooth module is used for receiving and amplifying a Bluetooth signal; the audio input module is used for acquiring and amplifying an audio input signal; the microphone module is used for receiving and amplifying microphone signals; the mixing module is used for mixing the amplified Bluetooth signal, the audio input signal and the microphone signal to obtain a mixed signal; and the power amplifier switching module is used for switching the connection states of the digital power amplifier module and the analog power amplifier module with the loudspeaker. When the multifunctional sound box is used at home, the analog power amplifier module can be used, when people go out, only the main sound box needs to be carried, power is supplied by the lithium battery, the digital power amplifier module is automatically switched, one box has multiple functions, and the multifunctional sound box has high cost performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound boxes, in particular to a multifunctional sound box, a working method thereof, an electronic device and a storage medium. BACKGROUND

[0002] There are two types of general household sound boxes. One type is fixed for home use, has two channels, is used for enjoying music and television sound, uses two sound boxes, and adopts an analog power amplifier circuit to ensure sound quality. The other type is used for outdoor activities such as square dancing and electronic instrument sound playing, only needs one sound box, and is powered by a lithium battery. In order to improve the battery life, a digital power amplifier is used to improve the power efficiency. The two types of products have their own purposes and cannot be replaced by each other, and the use scenarios are relatively limited. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a multifunctional sound box, a working method thereof, an electronic device and a storage medium, which can make the sound box suitable for various purposes.

[0004] In one aspect, the multifunctional sound box according to an embodiment of the present application comprises:

[0005] a Bluetooth module configured to receive a Bluetooth signal and amplify the Bluetooth signal;

[0006] an audio input module configured to obtain an audio input signal and amplify the audio input signal;

[0007] a microphone module configured to receive a microphone signal and amplify the microphone signal;

[0008] a mixing module having input ends electrically connected to output ends of the Bluetooth module, the audio input module and the microphone module, and configured to mix at least one of the amplified Bluetooth signal, the amplified audio input signal and the amplified microphone signal to obtain a mixed signal;

[0009] an analog power amplifier module having an input end electrically connected to an output end of the mixing module;

[0010] a digital power amplifier module having an input end electrically connected to an output end of the mixing module;

[0011] a power amplifier switching module having input ends electrically connected to output ends of the digital power amplifier module and the analog power amplifier module, and an output end electrically connected to a loudspeaker, the power amplifier switching module being configured to switch connection states of the digital power amplifier module and the analog power amplifier module with the loudspeaker;

[0012] A switching power module is configured to provide working voltages for the Bluetooth module, the audio input module, the microphone module, the mixing module, the analog power amplifier module and the power amplifier switching module.

[0013] A battery management module is electrically connected with the switching power module and the digital power amplifier module, the switching power module is configured to provide working voltage for the battery management module, and the battery management module is configured to manage the charging and discharging of the battery, to increase the voltage of the battery to provide power for the digital power amplifier module, and to provide working voltage for the Bluetooth module, the audio input module, the microphone module and the mixing module through the battery.

[0014] According to some embodiments of the present application, the multifunctional sound box further comprises an audio output amplification module configured to amplify the audio output signal of the multifunctional sound box.

[0015] According to some embodiments of the present application, the Bluetooth module comprises a Bluetooth signal receiving unit and a Bluetooth signal amplification unit, the output end of the Bluetooth signal receiving unit is electrically connected with the input end of the Bluetooth signal amplification unit, and the output end of the Bluetooth signal amplification unit is electrically connected with the input end of the mixing module, the Bluetooth signal receiving unit is configured to receive Bluetooth signals, and the Bluetooth signal amplification unit is configured to amplify the Bluetooth signals.

[0016] According to some embodiments of the present application, the microphone module comprises an ear-hanging wireless microphone receiving unit, a handheld wireless microphone receiving unit and a microphone signal amplification unit, the ear-hanging wireless microphone receiving unit and the handheld wireless microphone receiving unit are configured to receive microphone signals, and the microphone signal amplification unit is configured to amplify the microphone signals.

[0017] According to some embodiments of the present application, the loudspeaker comprises a first loudspeaker and a second loudspeaker, the power amplifier switching module comprises a first relay and a second relay, the normally closed contact of the first relay is electrically connected with the first output end of the digital power amplifier module, the normally open contact of the first relay is electrically connected with the first output end of the analog power amplifier module, and the common contact of the first relay is electrically connected with the first end of the first loudspeaker, the normally closed contact of the second relay is electrically connected with the second output end of the digital power amplifier module, the normally open contact of the second relay is grounded through a capacitor, the common contact of the second relay is electrically connected with the second end of the first loudspeaker, the first end of the second loudspeaker is electrically connected with the second output end of the analog power amplifier module, and the second end of the second loudspeaker is electrically connected with the common contact of the second relay.

[0018] According to some embodiments of the present application, a filter module is arranged between the output end of the digital power amplifier module and the input end of the power amplifier switching module, and the filter module is used to filter the output signal of the digital power amplifier module.

[0019] In another aspect, a working method of the multifunctional sound box according to the embodiments of the present application is applied to the multifunctional sound box described above, and the working method comprises:

[0020] When the switching power supply module is connected to an input power supply, the switching power supply module is used to convert the voltage of the input power supply and provide corresponding working voltages for the Bluetooth module, the audio input module, the microphone module, the mixing module, the analog power amplifier module, the power amplifier switching module and the battery management module.

[0021] The Bluetooth module is used to obtain a Bluetooth signal and amplify the Bluetooth signal.

[0022] The audio input module is used to obtain an audio input signal and amplify the audio input signal.

[0023] The microphone module is used to obtain a microphone signal and amplify the microphone signal.

[0024] The mixing module is used to mix the amplified Bluetooth signal, the amplified audio input signal and the amplified microphone signal to obtain a mixed signal.

[0025] The analog power amplifier module is used to obtain the mixed signal, and the power amplifier switching module is used to connect the analog power amplifier module to the loudspeaker, so that the analog power amplifier module outputs left and right channel signals to the loudspeaker according to the mixed signal.

[0026] The battery management module is used to charge the battery.

[0027] According to some embodiments of the present application, the working method further comprises:

[0028] When the switching power supply module is disconnected from the input power supply, the battery is used to provide corresponding working voltages for the Bluetooth module, the audio input module, the microphone module, the mixing module and the digital power amplifier module.

[0029] The Bluetooth module is used to obtain a Bluetooth signal and amplify the Bluetooth signal.

[0030] The audio input module is used to obtain an audio input signal and amplify the audio input signal.

[0031] The microphone module is used to obtain a microphone signal and amplify the microphone signal.

[0032] The amplified Bluetooth signal, the audio input signal and the microphone signal are mixed by the mixing module to obtain a mixed signal;

[0033] The mixed signal is obtained by the digital power amplifier module, and the digital power amplifier module is connected with the loudspeaker, so that the digital power amplifier module outputs a single-channel signal to the loudspeaker according to the mixed signal.

[0034] In another aspect, the electronic device according to the embodiment of the present application comprises:

[0035] The memory is configured to store program instructions.

[0036] The processor is configured to invoke the program instructions stored in the memory and execute the working method of the multifunctional sound box according to the obtained program instructions.

[0037] In another aspect, the computer readable storage medium according to the embodiment of the present application stores computer executable instructions for causing a computer to execute the working method of the multifunctional sound box.

[0038] The multifunctional sound box, the working method thereof, the electronic device and the storage medium according to the embodiment of the present application have at least the following beneficial effects: when used at home, AC power can be used, the analog power amplifier module is automatically switched, a pair of sound boxes are used, music is played through Bluetooth connection with a mobile phone, or KTV is performed through a microphone provided with the sound box, or an audio of a television set-top box is connected for playing. When going out, only the main sound box needs to be carried, powered by a lithium battery, the digital power amplifier module is automatically switched, the output power is equivalent to that of the analog double-channel, and the function and use method are the same as when AC power is used at home. The present application not only realizes one box with multiple uses, but also plays the respective advantages, has a high cost performance, and has a good market prospect.

[0039] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0041] Figure 1 FIG. 1 is a structural schematic diagram of a multifunctional sound box according to an embodiment of the present application;

[0042] Figure 2 FIG. 3 is a circuit principle diagram of a switching power supply module according to an embodiment of the present application;

[0043] Figure 3Circuit schematic of the battery management module of the embodiment of the present application;

[0044] Figure 4 Circuit schematic of the Bluetooth module, the audio input module, the microphone module, the mixing module, the analog power amplifier module and the power amplifier switching module of the embodiment of the present application;

[0045] Figure 5 Circuit schematic of the digital power amplifier module of the embodiment of the present application;

[0046] Figure 6 Step flow chart of the working method of the multifunctional sound box of the embodiment of the present application;

[0047] Figure 7 Step flow chart of the working method of the multifunctional sound box of another embodiment of the present application. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application. For the step numbers in the following embodiments, they are only set for the convenience of description and explanation, and the order between the steps is not limited in any way, and the execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0049] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0050] The terms "first", "second", "third", and "fourth" and the like in the description and claims of the present application and the accompanying drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0051] Reference to "an embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" or "in the embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive.

[0052] There are two types of general household sound boxes, one is fixed in the home using sound box, two channels, for enjoying music and TV sound, with two sound boxes, using analog power amplifier circuit to ensure sound quality. Another type is used for square dance, electronic musical instrument playback, etc. only one sound box is needed, lithium battery power supply, in order to improve the battery life, using digital power amplifier to improve power efficiency. Two types of products have their own purposes, and cannot be replaced by each other, and the use scene is more limited.

[0053] Therefore, the embodiment of the application provides a multifunctional sound box, a working method thereof, an electronic device and a storage medium, which can use AC power when used at home, automatically switches to an analog power amplifier module, uses a pair of sound boxes, plays music through Bluetooth connection with a mobile phone, or sings karaoke through a microphone matched with the sound box, or inputs audio of a TV set-top box to play. When going out, only the main sound box needs to be carried, which is powered by a lithium battery and automatically switches to a digital power amplifier module, the output power is equivalent to that of the analog double channel, the function and use method are the same as when AC power is used at home. The application not only realizes one box with multiple uses, but also plays its own advantages, has high cost performance, and has good market prospect.

[0054] The multifunctional sound box, the working method thereof, the electronic device and the storage medium will be described in detail below in combination with the drawings.

[0055] In one aspect, the embodiment of the application provides a multifunctional sound box, such as Figure 1As shown, it comprises a Bluetooth module 100, an audio input module 200, a microphone module 300, a mixing module 400, an analog power amplifier module 500, a digital power amplifier module 600, a power amplifier switching module 700, a speaker 800, a switching power supply module 900 and a battery management module 1000; wherein the Bluetooth module 100 is used to receive the audio signal sent by the device connected with the sound box through Bluetooth and amplify the received Bluetooth signal; the audio input module 200 is used to obtain the audio input signal sent by the audio source device (such as computer / television, etc.) connected with the sound box and amplify the audio input signal; the microphone module 300 is used to receive the microphone signal sent by the wireless / wired microphone and amplify the microphone signal; the input end of the mixing module 400 is electrically connected with the output end of the Bluetooth module 100, the audio input module 200 and the microphone module 300, respectively, and is used to mix the amplified Bluetooth signal, audio input signal and microphone signal to obtain a mixed signal; the input end of the analog power amplifier module 500 and the input end of the digital power amplifier module 600 are electrically connected with the output end of the mixing module 400; the input end of the power amplifier switching module 700 is electrically connected with the output end of the digital power amplifier module 600 and the output end of the analog power amplifier module 500, respectively; the output end of the power amplifier switching module 700 is electrically connected with the speaker 800; the power amplifier switching module 700 is used to switch the connection state of the digital power amplifier module 600 and the analog power amplifier module 500 with the speaker 800; the switching power supply module 900 is used to provide corresponding working voltage for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400, the analog power amplifier module 500 and the power amplifier switching module 700; the battery management module 1000 is electrically connected with the switching power supply module 900; the switching power supply module 900 is used to provide corresponding working voltage for the battery management module 1000; the battery management module 1000 is used to manage the charge and discharge of the battery and provide corresponding working voltage for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400 and the digital power amplifier module 600 through the battery.

[0056] When the switch power module 900 is connected to the external 220V AC power supply for power supply, the switch power module 900 converts the AC power into 24V, 12V, 5V, 4.2V and other different DC voltages to provide working voltages for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400, the analog power amplifier module 500 and the power amplifier switching module 700, so that the Bluetooth module 100, the audio input module 200 and the microphone module 300 input the obtained audio signals to the mixing module 400 for mixing, and the mixing module 400 outputs the mixed signals to the analog power amplifier module 500, so that the analog power amplifier module 500 outputs the dual-channel signals to the loudspeaker 800; in this state, the power amplifier switching module 700 cuts off the connection between the digital power amplifier module 600 and the loudspeaker 800, and the digital power amplifier module 600 does not work; at the same time, the switch power module 900 controls whether the battery management module 1000 charges the battery according to the condition of the battery. When it is needed to carry the sound box out, the switch power module 900 is disconnected from the external AC power supply, and the battery provides corresponding working voltages for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400 and the digital power amplifier module 600; at this time, the digital power amplifier module 600 is connected to the loudspeaker 800, while the power amplifier switching module 700 disconnects the connection between the analog power amplifier module 500 and the loudspeaker 800, the Bluetooth module 100, the audio input module 200 and the microphone module 300 input the obtained audio signals to the mixing module 400 for mixing, and the mixing module 400 outputs the mixed signals to the digital power amplifier module 500, so that the digital power amplifier module 500 outputs the single-channel signals to the loudspeaker 800.

[0057] Therefore, according to the multifunctional sound box, when used at home, AC power supply can be used, the analog power amplifier module 500 is automatically switched, one pair of sound boxes are used, music is played through the Bluetooth connection of a mobile phone, or KTV is performed through the microphone provided by the sound box, or the audio of a television set-top box is connected for playing. When going out, only the main sound box needs to be carried, the lithium battery is used for power supply, the digital power amplifier module 600 is automatically switched, the output power is equivalent to the analog dual-channel, and the functions and use methods are the same as when AC power supply is used at home. The multifunctional sound box not only realizes one box with multiple uses, but also plays the respective advantages, has high cost performance, and has good market prospects.

[0058] Further, in some embodiments of the present application, the Bluetooth module 100 comprises a Bluetooth signal receiving unit and a Bluetooth signal amplifying unit, the output end of the Bluetooth signal receiving unit is electrically connected with the input end of the Bluetooth signal amplifying unit, the output end of the Bluetooth signal amplifying unit is electrically connected with the input end of the mixing module 400, the Bluetooth signal receiving unit is used for receiving Bluetooth signals, and the Bluetooth signal amplifying unit is used for amplifying the Bluetooth signals. The Bluetooth signal receiving unit has a display screen and a USB, is a separate circuit board, obtains 5V power supply from the mainboard through a connector, and after obtaining the Bluetooth signals, sends the two-channel audio signals back to the Bluetooth signal amplifying unit of the mainboard to enter amplification. As shown in Figure 4 the Bluetooth signal amplifying unit connects the Bluetooth signal receiving unit through JP2-1, and the Bluetooth signal amplifying unit comprises a chip U1, the chip U1 has double operational amplifiers, one operational amplifier corresponds to the left channel and the other operational amplifier corresponds to the right channel, and is used for amplifying the left and right two-channel signals, and the output signal of the chip U1 is output to the chip U2 of the mixing module 400 through the capacitor C3, the resistor R3, the capacitor C7 and the resistor R7.

[0059] Further, as shown in Figure 4 in some embodiments of the present application, the audio input module 200 connects the audio input signal through JP7-1, the audio input module 200 comprises a chip U5, the chip U5 has double operational amplifiers, which are respectively used for amplifying the left and right channels of the audio input signal, and the output of the chip U5 is sent to the chip U2 of the mixing module 400 through the capacitor C31, the resistor R35, the capacitor C34 and the resistor R41.

[0060] Further, as shown in Figure 4 in some embodiments of the present application, the microphone module 300 comprises an ear-hanging wireless microphone receiving unit (hereinafter referred to as wireless microphone 1), a handheld wireless microphone receiving unit (hereinafter referred to as wireless microphone 2) and a microphone signal amplifying unit, the ear-hanging wireless microphone receiving unit and the handheld wireless microphone receiving unit are used for receiving microphone signals, and the microphone signal amplifying unit is used for amplifying the microphone signals. The microphone signal amplifying unit comprises a chip U4, has double operational amplifiers, is connected with the signals of the wireless microphone 1 through JP5-1 and the signals of the wireless microphone 2 through JP8-1 respectively, and amplifies the microphone signals, wherein the output signal of one operational amplifier is sent to the chip U2 of the mixing module 400 through the capacitor C27, the resistor R30 and the resistor R32, and the output signal of the other operational amplifier is sent to the chip U2 of the mixing module 400 through the capacitor C32, the resistor R36 and the resistor R42.

[0061] Further, as shown in Figure 4As shown, in some embodiments of the present application, the mixing module 400 includes chip U2, which has double operational amplifiers, one of which is responsible for the left channel and the other of which is responsible for the right channel. Chip U2 is a reverse adder, which adds the signals of each channel and reverses them, one of the output signals being sent to the input terminals of the left and right channels of the analog power amplifier module 500 (chip U7) through capacitor C6, resistor R6, capacitor C9, and resistor R10. The other output signal is sent to the digital power amplifier module 600 (chip U6) through capacitor C43, resistor R52, capacitor C45, and resistor R54.

[0062] Further, as shown, Figure 5 in some embodiments of the present application, the digital power amplifier module 600 includes chip U6 (using a model such as TPA3118), which is connected in a single-channel power amplifier mode. The left and right channel signals sent by the mixing module 400 are connected to RINP and RINN, respectively. The 21 and 23 pins of chip U6 are short-circuited, and the 27 and 29 pins are short-circuited and then connected to a filter module (low-pass filter), which filters the output signal of the digital power amplifier module 600 to remove high-order harmonics and then outputs a single channel to the 2 and 7 pins of the relay JK1.

[0063] Further, as shown, Figure 4 in some embodiments of the present application, the analog power amplifier module 500 includes chip U7. A 24V voltage is input from the 8 pin to provide power for the analog power amplifier module 500, and left and right channel audio push signals are input from the 9 and 1 pins. After amplification, the left channel is output from the 6 pin and connected to the 1 pin of the relay JK1, and the right channel is connected to the speaker through the 1 pin of JP4 from the 4 pin.

[0064] Further, as shown, Figure 4 in some embodiments of the present application, the speaker includes a first speaker (SPEAK1) and a second speaker (SPEAK2), and the power amplifier switching module 700 includes a first relay JK1B and a second relay JK1C. The normally closed contact (2 pin) of the first relay JK1B is electrically connected to the first output end (DAMP) of the digital power amplifier module 600, the normally open contact (1 pin) of the first relay JK1B is electrically connected to the first output end of the analog power amplifier module 500, and the common contact (3 pin) of the first relay JK1B is electrically connected to the first end (1 pin) of the first speaker. The normally closed contact (7 pin) of the second relay JK1C is electrically connected to the second output end (DAMPN) of the digital power amplifier module 600, the normally open contact (8 pin) of the second relay JK1C is connected to ground through capacitor E2, the common contact (6 pin) of the second relay JK1C is electrically connected to the second end (2 pin) of the first speaker, the first end (1 pin) of the second speaker is electrically connected to the second output end of the analog power amplifier module 500, and the second end (2 pin) of the second speaker is electrically connected to the common contact (6 pin) of the second relay JK1C.

[0065] Furthermore, such as Figure 4 As shown, in some embodiments of the present invention, the multi-functional speaker further includes an audio output amplification module, which is used to amplify the audio output signal of the multi-functional speaker. Specifically, the audio output amplification module includes a chip U3, which includes dual operational amplifiers, corresponding to the left and right channels of the output signal respectively. After amplification, the output signal of the multi-functional speaker can be output to external devices (such as power amplifiers, recording devices, etc.).

[0066] like Figure 2 As shown, in some embodiments of the present invention, the switching power supply module 900 outputs four sets of voltages: 24V to power the analog power amplifier module, and 4.2V, 5V, and 12V (actually 12.7V) to power the Bluetooth module 100, audio input module 200, microphone module 300, and mixing module 400, respectively. The 24V output of the switching power supply module 900 also powers the battery management module 1000. The switching power supply module has a 220V AC input and is on a separate PCB. The Bluetooth signal receiving unit is on a separate circuit board, receiving 5V power from the main board, and sends the dual-channel audio signal back to the Bluetooth signal amplification unit for amplification via JP2. The wireless microphone 1 is soldered to the main board via JP5. Pins 1 and 2 of JP5 provide 4.2V power to the module, and pins 3 and 4 send the microphone signal to U4 for amplification. The wireless microphone 2 is connected to the main board via JP8. The main board's 12V power supply powers the wireless microphone 2 via pins 1 and 2 of JP8, and pins 3 and 4 send the audio signal to U4 for amplification. The battery management module 1000 is integrated onto the motherboard, such as... Figure 3 As shown, the battery management module 1000 connects to the lithium battery via JP9 and pins 1 and 2 of the double-pole double-throw switch S1. It automatically charges when the lithium battery voltage drops below 11.7V. The lithium battery is connected to the motherboard's 12V supply via diode D3. When the switching power supply module 900 outputs 12V, the voltages at the positive and negative terminals of diode D3 are equal, and D3 is cut off, so the lithium battery does not supply power. When the switching power supply module 900 does not output 12V, D3 conducts, and the lithium battery supplies power. It should be noted that the switching power supply module 900 also includes a DC boost converter chip and its peripheral components to boost the voltage to the required level.

[0067] like Figure 2As shown, when AC power is used, the power switch S1-1 is closed, 220V AC power is connected to the switching power supply module 900, the AC / DC starts to work, 24V main voltage and 12V voltage are output, the DC / DC starts to work, 4.2V and 5V voltage are output, and the analog power amplifier module 500, the microphone module 300, the Bluetooth module 100, the audio input module 200 and the mixing module 400 are powered. At the same time, the lithium battery is connected to the battery management module 1000, and when the lithium battery voltage is lower than 11.7V, the lithium battery is charged. Because the 24V main power is sufficient, the speaker can work normally and charge at the same time. At the same time, the relay JK1 is attracted, 1, 3, 6 and 8 are connected, the left channel of the analog power amplifier module 600 is U7(6)-JK1(1)-JK1(3)-JP1(1)-SPEAK1(upper)-SPEAK1(lower)-JP1(2)-JK1(6)-JK1(8)-E2(+)-E2(-)-GND, and SPEAK1 sounds. The right channel U7(4)-JP4(1)-SPEAK2(upper)-SPEAK2(lower)-JP4(2)-JK1(6)-JK1(8)-E2(+)-E2(-)-GND, and SPEAK2 sounds. At this time, it is stereo, and the digital power amplifier module 600 does not work because the speaker is disconnected. When the battery is used for power supply, the switch S1-1 is disconnected, and because the AC plug is pulled out, there is no AC power into the switching power supply, the AC / DC does not work, there is no 24V output, the analog power amplifier module 500 does not work, the relay JK1 is released, the switching power supply module 900 has no 12V voltage output, D3 is turned on, and the lithium battery powers the digital power amplifier module 600, the microphone module 300, the Bluetooth module 100, the audio input module 200 and the mixing module 400. Because there is no 24V voltage on the mainboard, the relay JK1 is released, the digital power amplifier module 600 single-channel output end DAMP-JK1(2)-JK1(3)-JP1(1)-SPEAK1(upper)-SPEAK1(lower)-JP1(2)-JK1(6)-JK1(7)-digital power amplifier output end DAMN. At this time, it is a single-channel digital power amplifier.

[0068] Therefore, the multifunctional speaker according to the embodiment of the application can use AC power at home, use a pair of speakers, play music through Bluetooth connection with a mobile phone, or sing karaoke through a microphone matched with the speaker, or input audio of a TV set-top box to play. When going out, only the main speaker needs to be carried, powered by a lithium battery, automatically switched to a digital power amplifier module, and the output power is equivalent to that of an analog double-channel. The functions and use methods are the same as when AC power is used at home. The application not only realizes one box with multiple uses, but also plays the respective advantages, has a high cost performance, and has a good market prospect.

[0069] On the other hand, based on the above multifunctional intelligent speaker, such as Figure 6As shown, the application also proposes a working method of the multifunctional intelligent sound box, which comprises the following steps:

[0070] Step S100: When the switching power supply module 900 is connected to the input power supply, the input power supply is converted by the switching power supply module 900, and the corresponding working voltage is provided for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400, the analog power amplifier module 500, the power amplifier switching module 700 and the battery management module 1000;

[0071] Step S200: The Bluetooth signal is obtained by the Bluetooth module 100, and the Bluetooth signal is amplified;

[0072] Step S300: The audio input signal is obtained by the audio input module 200, and the audio input signal is amplified;

[0073] Step S400: The microphone signal is received by the microphone module 300, and the microphone signal is amplified;

[0074] Step S500: The amplified Bluetooth signal, audio input signal and microphone signal are mixed by the mixing module 400 to obtain a mixed signal;

[0075] Step S600: The mixed signal is obtained by the analog power amplifier module 500, and the analog power amplifier module 500 is connected to the loudspeaker 800 through the power amplifier switching module 700, so that the analog power amplifier module 500 outputs left and right channels to the loudspeaker 800 according to the mixed signal;

[0076] Step S700: The battery is charged by the battery management module 1000.

[0077] As Figure 2As shown, when AC power supply is used, the power switch S1-1 is closed, the 220V input power supply is connected to the switching power supply module 900, the AC / DC starts to work, the output is 24V main voltage, 12V voltage, the DC / DC starts to work, the output is 4.2V, 5V voltage, and the analog power amplifier module 500, the microphone module 300, the Bluetooth module 100, the audio input module 200 and the mixing module 400 are powered. At the same time, the lithium battery is connected to the battery management module 1000, and when the voltage of the lithium battery is lower than 11.7V, the lithium battery is charged. Because the power of the 24V main power supply is sufficient, the sound box can work normally and charge at the same time. When working, the Bluetooth module 100, the audio input module 200 and the microphone module 300 input the obtained audio signals to the mixing module 400 for mixing, and the mixing module 400 outputs the mixed signals to the analog power amplifier module 500, so that the analog power amplifier module 500 outputs the double-channel signals to the loudspeaker 800; in this state, the power amplifier switching module 700 cuts off the connection between the digital power amplifier module 600 and the loudspeaker 800, and the digital power amplifier module 600 does not work. In this state, the relay JK1 is attracted, 1, 3, 6, 8 are connected, the left channel of the analog power amplifier module 600 is U7(6)-JK1(1)-JK1(3)-JP1(1)-SPEAK1(upper)-SPEAK1(lower)-JP1(2)-JK1(6)-JK1(8)-E2(+)-E2(-)-GND, and SPEAK1 sounds. The right channel U7(4)-JP4(1)-SPEAK2(upper)-SPEAK2(lower)-JP4(2)-JK1(6)-JK1(8)-E2(+)-E2(-)-GND, and SPEAK2 sounds. At this time, it is stereo, and the digital power amplifier module 600 does not work because the loudspeaker is disconnected.

[0078] Further, in some embodiments of the present application, the working method of the multifunctional intelligent sound box further comprises the following steps:

[0079] Step S800: when the switching power supply module 900 disconnects the input power supply, the corresponding working voltage is provided for the Bluetooth module 100, the audio input module 200, the microphone module 300, the mixing module 400 and the digital power amplifier module 600 through the battery;

[0080] Step S900: the Bluetooth signal is obtained through the Bluetooth module 100, and the Bluetooth signal is amplified;

[0081] Step S1000: the audio input signal is obtained through the audio input module 200, and the audio input signal is amplified;

[0082] Step S1100: the microphone signal is received through the microphone module 300, and the microphone signal is amplified;

[0083] Step S1200: mixing the amplified Bluetooth signal, the audio input signal and the microphone signal through the mixing module 400 to obtain a mixed signal;

[0084] Step S1300: obtaining the mixed signal through the digital power amplifier module 600, and connecting the digital power amplifier module 600 with the speaker 800, so that the digital power amplifier module 600 outputs a single-channel signal to the speaker 800 according to the mixed signal.

[0085] When using battery power, the switch S1-1 is disconnected, since the AC plug is pulled out, no AC power enters the switching power supply module 900, the AC / DC does not work, there is no 24V output, the analog power amplifier module 500 does not work, the relay JK1 is released, the switching power supply module 900 has no 12V voltage output, D3 is turned on, and the lithium battery supplies power to the digital power amplifier module 600, the microphone module 300, the Bluetooth module 100, the audio input module 200 and the mixing module 400. Since there is no 24V voltage on the mainboard, the relay JK1 is released, and the digital power amplifier module 600 outputs a single-channel signal from the digital power amplifier output end DAMN. At this time, it is a single-channel digital power amplifier.

[0086] Therefore, according to the working method of the multifunctional sound box, when used at home, AC power can be used, a pair of sound boxes can be used, music can be played through a mobile phone connected by Bluetooth, or KTV can be performed through a microphone provided by the sound box, or a television set-top box audio can be connected for playing. When going out, only the main sound box needs to be carried, powered by a lithium battery, automatically switched to a digital power amplifier module, and the output power is equivalent to that of an analog double-channel. The function and use method are the same as when AC power is used at home. The present application not only realizes one box with multiple uses, but also plays its own advantages, has a high cost performance, and has a good market prospect.

[0087] On the other hand, the present application also provides an electronic device, comprising:

[0088] The processor can be implemented in a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute related programs to realize the technical solutions provided by the embodiments of the present application.

[0089] The memory can be implemented in the form of read only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM), etc. The memory can store an operating system and other application programs. When the technical solutions provided by the embodiments of the present specification are implemented by software or firmware, the relevant program codes are saved in the memory and are called and executed by the processor to implement the working method of the multifunctional sound box.

[0090] The embodiments of the present application also provide a storage medium, which is a computer readable storage medium, and stores a computer program. The computer program is executed by a processor to implement the working method of the multifunctional sound box.

[0091] The memory is a non-transitory computer readable storage medium, which can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory can include a high-speed random access memory and can also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory can optionally include a memory remotely arranged relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. The above-described device embodiments are only schematic, and units described as separate components can or can not be physically separated, and can be implemented in one place or can be distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiments.

[0092] Although specific embodiments are described herein, one of ordinary skill in the art will recognize that many other modifications or alternative embodiments can be within the scope of the present disclosure. For example, any of the functions and / or processing capabilities described in connection with a particular device or component can be performed by any other device or component. Additionally, while various example implementations and architectures have been described in accordance with embodiments of the present disclosure, one of ordinary skill in the art will recognize that many other modifications to the example implementations and architectures described herein are within the scope of the present disclosure.

[0093] Certain aspects of the disclosure are described above with reference to block and flow diagrams of systems, methods, system and / or computer program products according to exemplary embodiments. It will be understood that one or more of the blocks of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by

[0094] Accordingly, the blocks in the block diagrams and flow diagrams support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions, and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by dedicated hardware-based computer systems which perform the specified functions or combinations of special-purpose hardware and computer instructions.

[0095] The program modules, applications, and the like described herein can include one or more software components, including, for example, software objects, methods, data structures, and the like. Each such software component can include computer-executable instructions that, in response to execution by a computer, cause at least a portion of the functionality described herein (e.g., one or more operations of the example methods described herein) to be performed.

[0096] Software components can be coded in any of a variety of programming languages. One illustrative programming language can be a low-level programming language, such as an assembly language associated with a particular hardware architecture and / or operating system platform. Software components including assembly language instructions can need to be translated via an assembler before execution by the hardware architecture and / or platform. Another illustrative programming language can be a higher-level programming language that can be portable across multiple architectures. Software components including a higher-level programming language can need to be translated via an interpreter or compiler before execution. Other examples of programming languages include, but are not limited to, a macro-language, a shell or command language, a job control language, a script language, a database query or search language, or a report writing language. In one or more example embodiments, a software component including instructions of one of the above examples of programming languages can be executed directly by an operating system or other software component without first being converted to another form.

[0097] Software components can be stored as files or other data storage constructs. Software components of a similar type or related function can be stored together in a particular directory, folder, or library, for example. Software components can be static (e.g., pre-set or fixed) or dynamic (e.g., created or modified at execution time).

[0098] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A multi-functional speaker, characterized in that, include: A Bluetooth module is used to receive Bluetooth signals and amplify the Bluetooth signals; An audio input module is used to acquire an audio input signal and amplify the audio input signal; A microphone module is used to receive microphone signals and amplify the microphone signals; The mixing module has its input terminals electrically connected to the output terminals of the Bluetooth module, the audio input module, and the microphone module, respectively, and is used to mix at least one of the amplified Bluetooth signal, the audio input signal, and the microphone signal to obtain a mixed signal; The analog power amplifier module has its input terminal electrically connected to the output terminal of the hybrid module; The digital power amplifier module has its input terminal electrically connected to the output terminal of the hybrid module; The power amplifier switching module has its input terminal electrically connected to the output terminals of the digital power amplifier module and the analog power amplifier module, respectively, and its output terminal electrically connected to the speaker. The power amplifier switching module is used to switch the connection status between the analog power amplifier module and the digital power amplifier module and the speaker. A switching power supply module is used to provide corresponding operating voltages for the Bluetooth module, the audio input module, the microphone module, the mixing module, the analog power amplifier module, and the power amplifier switching module; The battery management module is electrically connected to the switching power supply module and the digital power amplifier module. The switching power supply module provides the corresponding operating voltage to the battery management module. The battery management module manages the charging and discharging of the battery, increases the battery voltage to power the digital power amplifier module, and provides the corresponding operating voltage to the Bluetooth module, the audio input module, the microphone module, and the mixing module through the battery.

2. The multifunctional speaker according to claim 1, characterized in that, The multi-functional speaker also includes an audio output amplification module, which is used to amplify the audio output signal of the multi-functional speaker.

3. The multifunctional speaker according to claim 1, characterized in that, The Bluetooth module includes a Bluetooth signal receiving unit and a Bluetooth signal amplification unit. The output terminal of the Bluetooth signal receiving unit is electrically connected to the input terminal of the Bluetooth signal amplification unit, and the output terminal of the Bluetooth signal amplification unit is electrically connected to the input terminal of the hybrid module. The Bluetooth signal receiving unit is used to receive Bluetooth signals, and the Bluetooth signal amplification unit is used to amplify the Bluetooth signals.

4. The multifunctional speaker according to claim 1, characterized in that, The microphone module includes an ear-hook wireless microphone receiver unit, a handheld wireless microphone receiver unit, and a microphone signal amplification unit. The ear-hook wireless microphone receiver unit and the handheld wireless microphone receiver unit are used to receive microphone signals, and the microphone signal amplification unit is used to amplify the microphone signals.

5. The multifunctional speaker according to claim 1, characterized in that, The loudspeaker includes a first loudspeaker and a second loudspeaker; the power amplifier switching module includes a first relay and a second relay, wherein the normally closed contact of the first relay is electrically connected to the first output terminal of the digital power amplifier module, the normally open contact of the first relay is electrically connected to the first output terminal of the analog power amplifier module, and the common contact of the first relay is electrically connected to the first terminal of the first loudspeaker; the normally closed contact of the second relay is electrically connected to the second output terminal of the digital power amplifier module, the normally open contact of the second relay is grounded through a capacitor, the common contact of the second relay is electrically connected to the second terminal of the first loudspeaker, the first terminal of the second loudspeaker is electrically connected to the second output terminal of the analog power amplifier module, and the second terminal of the second loudspeaker is electrically connected to the common contact of the second relay.

6. The multifunctional speaker according to claim 1, characterized in that, A filtering module is provided between the output terminal of the digital power amplifier module and the input terminal of the power amplifier switching module. The filtering module is used to filter the output signal of the digital power amplifier module.

7. A method for operating a multifunctional speaker, characterized in that, Applied to the multi-functional speaker as described in any one of claims 1-6, the working method includes: When the switching power supply module is connected to the input power supply, the switching power supply module performs voltage conversion on the input power supply and provides the corresponding operating voltage for the Bluetooth module, the audio input module, the microphone module, the mixing module, the analog power amplifier module, the power amplifier switching module and the battery management module; The Bluetooth module acquires Bluetooth signals and amplifies them. The audio input module acquires the audio input signal and amplifies the audio input signal. The microphone module acquires the microphone signal and amplifies the microphone signal. The amplified Bluetooth signal, the audio input signal, and the microphone signal are mixed by the mixing module to obtain a mixed signal; The analog power amplifier module acquires the mixed signal, and the power amplifier switching module connects the analog power amplifier module to the speaker, so that the analog power amplifier module outputs left and right channel signals to the speaker according to the mixed signal. The battery is charged via the battery management module.

8. The method of operating the multifunctional speaker according to claim 7, characterized in that, The working method also includes: When the switching power supply module disconnects the input power, it provides the corresponding operating voltage to the Bluetooth module, the audio input module, the microphone module, the mixing module, and the digital power amplifier module through the battery; The Bluetooth module acquires Bluetooth signals and amplifies them. The audio input module acquires the audio input signal and amplifies the audio input signal. The microphone module acquires the microphone signal and amplifies the microphone signal. The amplified Bluetooth signal, the audio input signal, and the microphone signal are mixed by the mixing module to obtain a mixed signal; The mixed signal is acquired by the digital power amplifier module, and the digital power amplifier module is connected to the speaker, so that the digital power amplifier module outputs a mono signal to the speaker according to the mixed signal.

9. An electronic device, characterized in that, include: Memory, used to store program instructions; A processor is configured to invoke program instructions stored in the memory and execute the operating method of the multifunctional speaker according to any one of claims 7-8.

10. A storage medium, characterized in that, The storage medium stores computer-executable instructions for causing a computer to perform the operating method of the multifunctional speaker as described in any one of claims 7-8.

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